Pinking machine



Aug. 3, 1943. L, s, ROD 2,325,634

PINKING MACHINE Filed Aug. 3, 1940 4 Sheets-Sheet l INVENTOR. Lester S. Rod/ 3 ATTORNEYS- Aug. 3, 1943. L. s. ROD 2,325,634

PINKING MACHINE Filed Aug. 5, 1940 4 Sheets-Sheet 2 IN VENT OR. Lester S. Rod,

ATTORNEYS.

Aug. 3, 1943. s, ROD 2,325,634

PINKING MACHINE Filed Aug. 5, 194 4 Sheets-Sheet 5 INVENTOR. Lester S. Rod/ I ATTORNEYS.

L. S. ROD

PINKING MACHINE Aug. 3, 194.3; 2,325,634

Filed Aug. 5, 1940 4 Sheets-Sheet 4 J rravc 61 Fig. 11 i 5 I Fi .9 7% 11+- BY Lester S. TORI ATTORNEYS.

j dot and dash lines in'Figures ga es. r

; tacting the lower end 3| of the :shaijtiB and is raising said shaft causing it, to move from its 3 dotand dash line position in Figure 4 to m rlin line position in saidfigure. As the shaft Srises r r i it carries with it the platform 5 which is attached v w thereto, Asthe platformS rises it reaches alpoint where the first toothiA oith'e cutting member 62 f the shear element Q meshes with the first tooth A formed on the cutting member 84. As

distance suificient to-permitathe tooth onuthe a l i r 2,325,634 dash *line position shown in Figure 4jto its full line position in said figure. During wthismovement the arm 280i the 'treadlele verl lis conas beingby'the way of illustration onlyand not big the way of limitation since many changes these teeth mesh, the cutting members Mandi 84 of which they are integral parts'm'ove from M their respective positions shown in Figure 6 to their respective positions shown in Figure 9 a;

cutting member 62 immediately adjacent A to? may be made in the structure here shown with- 1 out departing from the spirit of my invention;

For this rreason, it is my desire that the claims which areherunto appended foruthe purpose of defining my invention should be limited only y by the prior art." l

1- 1 P n machinecomprising apbase, V member and'afplatform movable relatively to 1" said base member from: a) ,nO I1 -S hea:r1ng;t l

shearing position-a pair of shear elements, one

carriedby said base member and the other by said platform; each of said shear elementscomprising affixed member, guide pins carried by said fixed member; a toothed cutting member mounted on said pins at ariangle to said fixed member for fmovement,relatively tosaid fixed member during theshearing operation, and means for; "normallyurg'ing one, oftthe ends'of said toothed f cutting member away from saidfixedm'ember the platformreaches the position shown by the 7 fulllines in Figures and 6 all of the teethon i the cutting member 62 havemesh edwith all of the teeth onthecutting member a4. (The plan view'oftheteeth when fully meshed is shown in Figure 9 and the plan view rof the teeth as they; 7

appeared before the platform; began to rise 'is 1 fjShOWn inFigure Movement; of the cutting J members ,62 and" 84 from their respective-posi- U tions shown in Figure 6Ito their respective posi tlons shown in Figure 9 ismade possible because i of the angular mounting of the cutting members 7 1 62 and 84 relative totheir respective fixed mem A bers 6I and-83 and suifi'cientclearance or proper fittingis provided between the shouldenscrews' 83, 64,85 "and 86 and the fixed frnembers GI and i "through which they extend.) Asthe platformg Srises duringthe course of the movementvde scribed in this paragraph it carries with it the trousers positioned thereon which are pinked? bythe'cooperating shearelenfients 8 and 9; The a 7 material cut-01f in the pinking operation falls thereby causing said toothed cutting member to form an angle with said fixed memberwhen the shearing elements of said pinking machine'are 1 t .t in the non-shearing position; i l

i 2. Inna" pink-ing machine comprising a'j basel member and a platform movable relatively to said base member from a non-shearing; to a shearing =position+a pair of shear elements; one i 1 carried by said base member and the other cari rried bysaid platformyach of said shear elements comprising a fixed member, guide pinscarried by saidfixed member a toothed cutting member mounted on said pins at an angle to said fixed member formovement relatively to said fixed member during the shearing operation, andmeans for normally urging one of the ends of said toothed cutting member away from said fixed member thereby causing" said toothed cutting memberto form an anglewwith said'ffixed member when the shearing elements of said pinking machine are in theInon-shearing position,

saidtoothed cutting membersbeing positioned i at an anglefto each other and so that their teeth will mesh at one of their adjoining ends. and overhang at the other of their adjoining ends when, said toothedcuttingmembers first contact in "the course oi the motion of said platform from its'non-shearing to its shearing position.

upon the trough in chute and slides: down to i 1 a waste-box (not shown) As soon'as the pinking l I operation is completed, the operatorremoves his footfrom the treadlen The-force of sgravity,pl usj the pressureof the helical spring iorcesthe g shaftfij and'platformiicarried thereby to move r from'the full line position shown in Figures 4 v y and 5 to their respective dotland dash line posi-Q I tions in said figures; "In the course ofthis down pfl ward motion, thev cutting memberswBZ and y it 1 reverse the movements described in thelpreced ing paragraph and go from their respective p'osi--- tlons shown in Figures 9 to 11 to those shown in Figures 6 to 8. 'I'he shock due to the rapid de 3 scent of the platform 5 is absorbed by the rubben pads 95 which are positioned on the upper *sur- -I face 91 of the boss19 and on whichlthe platiorm rests when it is inthe glowered ornormaliposition shown by theiulllines in Figures 1 to 3 and the ;3. In a pinking'machine comprising two mem bers, one movable relatively to the other froma l i non-shearing 'to a shearing position-a pairof shear elements, one carried by one of said members and theother carried by, the other of said members and eachof said shearelementshaving a toothed cuttingedgeyat least oneof said shear Q elements comprising a fixed member and a toothed cuttingmember forming an acute angle -with said fixed member and being mounted for movement relatively to said fixed member during the shearing operation, and meansfor normally 'urging one of the ends of said toothed cutting member away from said fixed member thereby causing said toothed cutting memberto forma said acute angle withIsald fixed member when I; theshearingyelementstof the pinking machine are inthe non-shearing position. {I I qlmsm 5. R019.

The foregoing description is to be understood y Having described y mv what I claim i i v dl fiful is: V y i t 

